pengtingdeMacBook-Pro:HackerNews patrick$ pod install Updating local specs repositories Analyzing dependencies Downloading dependencies Installing Firebase (2.3.3)

[!] Error installing Firebase [!] /usr/bin/curl -f -L -o /var/folders/fz/k44v3dq925nb2f6vdklx6rw40000gn/T/d20151120-3687-kwt8qu/file.zip https://cdn.firebase.com/ObjC/Firebase.framework-2.3.3.zip --create-dirs

% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 13 8155k 13 1087k 0 0 1687 0 1:22:30 0:10:59 1:11:31 0curl: (18) transfer closed with 7237202 bytes remaining to read

I followed the instructions from Getting Started. The app runs, but no data is being displayed on the app besides an advertisement.

I'm new to iOS development, so I could be missing something in my Xcode setup.

What is this?

There was a deprecation warning

What did I do?

I replaced

refreshControl.addTarget(self, action: "retrieveStories", forControlEvents: .ValueChanged)

with

refreshControl.addTarget(self, action: #selector(MainViewController.retrieveStories), forControlEvents: .ValueChanged)

What is this?

When the scrollview is loading, if you tap on a cell or attempt to scroll, you will get a fatal error with because of an index that's out-of-bounds. See Issue #30

What did I do?

The stories array was being cleared whenever retrieveStories() was called. I removed the line of code that did that. I also initialized stories to [] at declaration

Do you know how to solve this error Installing Firebase (2.4.3)

[!] Error installing Firebase [!] /usr/bin/curl -f -L -o /var/folders/4n/r52nhvys2_v1whps16vzs85c0000gn/T/d20160322-80022-1oihoos/file.zip https://cdn.firebase.com/ObjC/Firebase.framework-2.4.3.zip --create-dirs

% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (7) Failed to connect to cdn.firebase.com port 443: Connection reset by peer

I did some refactoring:

• extracted cancel block so that the code is not repeated twice.
• to simplify a bit the retrieveStories function I extracted the creation of a story to its own function
• Story is not expected to change so all properties can be immutable as well

[luke@Air:~/APP/HackerNews]$ ls HackerNews HackerNewsTests Podfile.lock HackerNews.xcodeproj LICENSE README.md HackerNews.xcworkspace Podfile [luke@Air:~/APP/HackerNews]$ pod install -bash: pod: command not found